Vow

Boyd’s Bible Dictionary:

(wish). Vows were threefold, vows of devotion, abstinence, and destruction, and respecting them certain laws were laid down ({vi 5522-5524}Deut. 23:21-23). The law in Leviticus 27 regulated the vow of Corban, and that in {vi 3825-3845}Numbers 6:1-21 the Nazarite vow.